最终，我们在这家店给狗选了一个超大的“单人牢房”，一晚房费就要三百多元，从除夕寄养到初三。对象把狗送到店里时，带足了它在家常吃的狗粮，以免寄养期间突然更换食谱，肠胃闹毛病；家里它常睡的狗沙发、常玩的狗玩具，对象也给它塞进了房间，总之，就是尽力营造它熟悉的空间。
There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
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3. Click on (+From Store) to access chrome web store or simple search chrome web store and access it.